Refrigerator



(No Model.)

P. C. H. STRASBURGER- RBFRIGBRATOR. No. 408,905. Patented Aug. 13, 1889.

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UNITED STATES PATENT OEEICE.

FRANK C. H. STRASBURGER, OF CHICAGO, ILLINOIS.

REFRIGERATOR.

SPECIFICATION forming part of Letters Patent No. 408,905, dated August 13, 1889.

Application filed February 6, 1889. Serial No. 298,925. (No model.)

To all whom t may concern:

Be it known that I, FRANK C. H. STRAS- BURGER, of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Refrigerators, of which the followingis a specification.

My invention is designed more especially for use in cooling-rooms, refrigerator-cars, and other large spaces which are to be used for preserving meats or furnishing cold storage for perishable articles, and in which ice is used as the refrigerant.

The main object of myinvention is to cause the cooled air to issue from the ice-box into the room or car inv a strong' concentrated blast by natural circulation and Without artiiicial aid, so that it may be conveyed throughout the whole. space to be cooled. Incident to this main purpose is the utilization of the cooling effect of the water resulting from the melting of the ice or mixture of ice and salt, and which I prefer to use.

In the accompanying drawings, Figure lis a front view of the refrigerator, the casing being cut away in front. Fig. 2 is a vertical cross-section. Fig. 3 is an enlarged section of the drain-pipe trap.

A is an ice-holding tank or box of galvanized iron or like material. It is surrounded on three sides by a casing B, the front being open or having merely a few cross-strips C C, as shown in Fig. 2, for the purpose of strengthening it. There is some space between the tank A and the' casing B, except at the top, the tank being' flared to fitthe casing closely, as shown. A cover D is fitted to the top of the tank A.

The ice rests on a perforated plate E, which is supported by the bolts F F, zc., extending across the tank and through the sections of tubing G, Fig. 2, placed within the tank. The pieces of tubing G keep. the tank from being collapsed by the screwing up of the bolts F F.

The lower chamber d, formed in the tank A by the division-plate E, serves `as a receptacle for'the drip-water, which is carried off by the pipe or pipes II from said chamber. The pipes Il project some distance ,upward from the bottom of the chamber c, so that a considerable depth of water will be carried therein. An ind uction-pipe I opens into the chamber a and an eduction pipe or pipes J lead therefrom. The eduction-pipe J is curved, so that its outer end is below while its inner end is above the water-line. Said inner end has a hoodj, which prevents dripwater entering the pipe. The induction-pipe I extends to the upper part of the tank A or the cooling-room in which it is placed. Induction-openings are also made inthe upper part of the tank A, as shown at K K. I iit these openings with upwardly-curved pipes in order to prevent the escape of ice or drip.

L M are hand-holes for draining and cleaning the refrigerator.

For the sake of greater strength and for facility of manufacture I make the bottom of the tank A semicircular and support it in blocks N N. The said blocks rest in a drippan I, the water from which is drained away through the pipe P. The pipe P is closed against the entrance of air by a water seal formed by a cup R inclosing its lower end.

,The cup is most conveniently fastened by wiring, as shown in Fig. 3, in which r r represent short wires secured to the upper edge of the cup R. These wires are passed through holes in the flange S, and are then bent over.

The operation is as follows: The tank A being iilled with ice, or with ice and salt, induces a descending current of air in its vicinity, which current, being confined on three sides by the inclosing-walls B, is directed outward from the open side; but as this current is weak and much diffused its effect would be lost at a short distance from the refrigerator were it not re-enforced by the current from the pipes J. The air which enters the pipes K attains the temperature of the ice by the time it reaches the compartment a. The air entering the pipe I will also be cooled in its passage through the pipe and across the compartment a, (the latter being the coldest part of the refrigerator,) and through the two currents combined and concentrated issue from the eduction-pipes J in a strong blast, as I have found in practice, and not only furnish a cold stream of air in themselves, but

assist in carrying along and diifusing the first-mentioned current of cold air which de- IOO seends around the outer side of the ice-tank.

I have obtained good results by the use of this device without the pipe I; but the addition of this pipe produces greater circulation and more equable refrigeration.

It is apparent that the drip-water ehainber a and the arrangement of pipes therein, as herein shown and described, is per se applicable to ice-receptacles of various forms and constructions.

I claiml. In a refrigerating apparatus, in eoinbination with an ice-tank, a drip-water Chainber having an air-eduetion pipe one end of which is above and the other end is below the water-level of said chamber.

2. In a refrigerating apparatus, the eornbination, with an ice-tank, of a drip-chamber beneath said tank having` in said ohaniber the drip-pipe ll,with the air-pipe .I arranged in said chamber, substantially as described,

and the inlet ai r-pipe K located in the upper part of the ice-receptacle.

3. In a refrigerating apparatus, the combination, with the iee-tank A, of a drip-Water Chamber having the drip-pipe II, the air-pipe I, Communicating with said drip-chamber, the ai r-pipe J, also communicating with said drip- Chamber, and ,the air-inlet pipe K, comm unieating With the upper part of the ice-tank.

4. In a refrigerating apparatus having an ice-tank with air-inlets in its upper portion and a drip-water chamber having an air-out let into the compartment to be cooled, the air-conduit I, Communicating with the lower portion of the refrigerating apparatus, all constructed and arranged substantially as shown and described.

FRANK C. Il. RASBURGER Witnesses:

J. I. VEEDER, P. Il. T. MASON. 

